diff --git a/doc/thanks.texi b/doc/thanks.texi
index 4d9662d..e551ffc 100644
--- a/doc/thanks.texi
+++ b/doc/thanks.texi
@@ -22,7 +22,7 @@ questions.
 
 Matthew Flatt, Robby Findler and the rest of the PLT team did not only
 answer my inquiries, but provided almost instant fixes to the few
-issues i found.
+issues I found.
 
 Thanks also to the PLT and Guile communities, for showing me that
 Geiser was not only possible, but a pleasure to hack on. And to the